/*
 * Copyright 2023 AntGroup CO., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 */

package com.antgroup.geaflow.cluster.rpc.impl;

import com.antgroup.geaflow.cluster.rpc.IMetricEndpointRef;
import com.antgroup.geaflow.rpc.proto.MetricServiceGrpc;
import com.antgroup.geaflow.rpc.proto.MetricServiceGrpc.MetricServiceFutureStub;
import com.antgroup.geaflow.rpc.proto.Metrics.MetricQueryRequest;
import com.antgroup.geaflow.rpc.proto.Metrics.MetricQueryResponse;
import com.google.common.util.concurrent.ListenableFuture;
import io.grpc.ManagedChannel;
import java.util.concurrent.ExecutorService;

public class MetricEndpointRef extends AbstractRpcEndpointRef implements IMetricEndpointRef {
    private MetricServiceFutureStub stub;

    public MetricEndpointRef(String host, int port, ExecutorService executorService) {
        super(host, port, executorService);
    }

    @Override
    protected void createStub(ManagedChannel channel) {
        this.stub = MetricServiceGrpc.newFutureStub(channel);
    }

    @Override
    public ListenableFuture<MetricQueryResponse> queryMetrics(MetricQueryRequest request) {
        ensureChannelAlive();
        return stub.queryMetrics(request);
    }
}
